Electric switch for chandeliers or brackets



(No Model.) 7

J. W. PARKIN. ELECTRIC SWITCH FOB. GHANDELIERS 0R BRACKETS.

No. 593,237. Patented Nov. 9,1897.

ATTORNEY WXTNESSES was twice.

JO$EPI-I PARKIN, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC SWlTCH FOR CHANDELIERS OR BRACKETS.

SPECIFICATION forming part of Letters Patent 210,593,237, dated November9,1897.

Application filed January 26, 1897. $erial No. 620,731. (No model.)

T0 at whom, it may concern/.-

Be it known that I, JOSEPH W. PARKIN, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Electric Switches forChandeliers, Brackets, the, which improvement is fully set forth in thefollowing specification and accompanying drawings.

My invention consists of an improved construction of electric switch forchandeliers, brackets, &c., the novel features of which will behereinafter fully set forth, and specifically pointed out in the claims.

Figure 1 represents a plan view of an electric switch embodying myinvention, the top or cap thereof being removed. Fig. 2 representsasection on line mm, Fig. 1. Fig. 3 represents a sectional view of theswitch seen in Fig. 1, the plug thereof being shown in elevation. Fig. 4represents a section on line y 12 Fig. 1. Fig. 5 represents a plan viewof the switch with the top or cap removed similar to Fig. 1, but withthe contact device or breaker also removed. Fig. 6 represents a bottomplan view of the plug employed. Fig. 7' represents a perspective view ofthe contact-breaker removed, a different form of con tact-breaker beingshown from that seen in the other figures. Fig. 8 represents a sectionalview of another embodiment of the principle of my invention, showing thecap or top of the switch screwed into the casing.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring; to the drawings, A designates the casing of a switch, in thelower portion of which is rotatably mounted the stem G, having thefinger-piece C, said stem passing through an opening E in the plug D,which latter has in its lower portion at a side thereof the groove orrecess F, in which is located the main conductor G, which passes throughthe opening G in said casing, whereby the said plug will be preventedfrom turning and at the same time the said conductor will be insulated.

H designates threaded stems or screws which pass through the plug D onopposite sides of the stem 0 and hold in place the contact-plates J, thelatter as well as said screws being composed of suitable conductivematerial, while the plug D is composed of non-conducting material, itbeing evident that the plates J may be omitted, if desired, and thescrews H alone employed to make the circuit.

K designates nuts which engage the threaded portion of each of thescrews H, which latter serve as binding-posts, said nuts holding inposition the conductors L, one of which leads to the electric light orother device. M designates a contact device or breaker, which isinsulated from the stem 0 by means of a non-conducting collar M, as willbe understood from Fig. 2, the contact device being provided with thewings N, which latter are deflected downwardly, as will be understoodfrom Fig. 3, the ends of said wings N contacting either with the platesand screws J H or the intermediate spaces Jof the nonconducting plug D,it being understood that the spaces J as well as the intermediateportions upon which the plates J rest are recessed, as will beunderstood from Figs. 3 and i, so that while the contact device M andstem 0 can be freely rotated in one direction rotation in the oppositedirection will be prevented by the contact of the ends of the wings Nwith the shoulders J on said plug.

P designates a cap or cover for the casing A, in which the extremity ofthe stem C- has a bearing, the said cap being secured to said casing bymeans of the screw R, which is insorted in the end of said stem and hasits head in contact with said cap.

The operation is as follows: The main current passes through theconductor G to the lamp or other desired point, and when the parts arein the position indicated in Fig. 3, in which the wings N are in contactwith the binding-posts H or plates J, the circuit will be completed, thecurrent passing through one of theeonductors L to its binding-post H andthence through the wings N of the contact device over to the oppositebinding-post and thence out through the other or opposite conductor L.To break the circuit, it is only necessary to rotate the stem 0, andconsequently the contact-breaker, until the wings N rest upon thesurfaces J of the plug 1).

When the cap seen in Fig. 8 is employed, the stem 0 (seen in Fig. 7) isemployed, said stem having ahead D of insulating material, thereon,which is provided with the squared It will of course be evident thatchanges may be made by those skilled in theart which 1 Will come withinthe scope of my invention,

and I do not, therefore, desire to be limited in every instance to theexact construction I have herein shown and described.

Having thus described my invention, what L I claim asnew, and desire tosecure by Letters Patent, is-

1. An electric switch for chandeliers, &c., a casing having openings inits sides, a cap covering anopenin g in said casing, a rotatable stem insaid casing, a non-conducting plug through which said stem passes,contactpoints carried by said plug, conductors connected with saidcontact-points, contact devices mounted on and insulated from said stem,adaptedto contact with said points, and a groove in the under side ofsaid plug adapted to sustain the conductor, whereby said plug isprevented from turning.

2. An electric switch for chandeliers, &c., a casing having openings inits sides, a cap covering an opening insaid casing,a rotatable stem insaid casing and in said cap, means connected with said stem for holdingsaid cap in place, a non-conducting plug through which said stem passes,contactrplates on said plug, contact-points connected with said plates,conductors connected with said contact-points,

contact devices mounted on and insulated from said stem, adapted tocontact with said plates and a groove in the under side of said plugadapted to sustain the conductor, whereby said plug is prevented fromturning.

3. An electric switch for chandeliers, consisting of the casing A,having the base B, and provided with the openings G and cap P, therotatable stem 0 journaled in said base and cap and provided with thehandle 0, the stationary non-conducting plug D, having the recess F andprovided with recesses on its upper face forming shoulders, theconducting-plates J on said face, binding-posts H in said plugcommunicating with said plates,

conductors connected with binding-posts, and the contact device Mmounted on but insulated from said stem and having the elastic Wings N,riding on said plug.

e 4. An electric switch for chandeliers, &c., a casing having an openingin its sides, a cap covering an opening in said casing, arotatable stemjournaled in said casing and having a polygonal portion, a nonconducting plug through which said stem passes, means for preventingsaid plug from turning, contactpoints on said plug, conductors connectedwith said points, and a contact device having a polygonal openingmounted on said stem, but insulated therefrom and adapted to contactwith said points.

JOSEPH W. PABKIN. Witnesses:

JOHN A. WIEDERsHEIM, WM. 0. WIEDERSHEIM.

